Hi. Does your compute rmeet the Photoshop GPU requirements, as listed on this page: https://helpx.adobe.com/photoshop/system-requirements.html ?
If so, please go to Photoshop>Preferences (MAC) or Edit>Preferences (WINDOWS) and Performance. There, please turn on Use Graphics Processor - and try changing the Advanced Setting to Normal, or Advanced.
Adobe Community Expert / Adobe Certified Instructor